Friedrich wiliielm mrose



(N0 Model) F. W. MROSE.

SAFETY STIRRUP, No. 537,219; Patented Apr. 9,1895.

w/NEssLe-S: Y /NvE/vro v JM ful@ 7 gm @M By fiwwym A TTOHN E YJ'.

UNtTnD STATES PATENT Curran.

FRIEDRICH IVILI-IELM MROSE, OF COESFELD, GERMANY.

SAFETY-STI RRU P.

SPECIFICATION forming part of Letters Patent No. 537,219, dated .April 9, 1895.

Application tiled January 15, 1895. Serial No. 535,033. (No model.)

To all whom, it may concern:

Be it known that I, FRIEDRICH WILHELM MROSE, a subject of the King of Prussia, German Emperor, residing at Coesfeld, in the Empire of Germany, havevinvented certain new and useful Improvements in Safety-Stirrups, of which the following is a specification.

The present invention relates to an improved stirrup by which its entanglement with the foot of-vthe rider in case of accident, such as the fall of the rider orhorse, or iu mounting or disnnounting, is prevented.

The improved stirr-up differs from others having the saine object, in the method of construction by which to obtain the required result, the tread of the stirrup being made in two halves, which, by they pressure of the riders foot when caught in it, turn sidewise and thereby open,while after the foot is freed from the stirrup, the parts return automatically to their normal position.

The accompanying drawings are in illustration 0f the invention.

Figure l is a longitudinal section through a stirrup, and Fig. 2 is a transverse section, showing the bottom plate or tread.

The upper part or bail a of the stirrup is somewhat larger in cross section than the side pins b b projecting down from its lower ends, upon which the tread made in two parts c c fits, these parts being provided with sockets c c', which turn upon the pins b b.

The upper edges of the sockets c', are in clined to theiraxis, and tit against correspond-v ing sockets or rings ci the lower edgesof which are similarly inclined or beveled, a'nd which are movable in a longitudinal direction only, being guided by a pin cl2 fitting in the slot d. These sockets d are pressed down by helical springs e the upper ends of which abut against the projecting edge of the bail a., of the stirrup, and in this way the halves of the tread c c are kept in their proper normal position.

In order to reduce the friction of the sockets c c upon the halves ofthe tread in turning, the lower ends of these sockets are fitted with antifriction balls f which are supported by a flange upon the head g of a screw g screwed into the lower end of the pins b. The whole of the parts surrounding these pins are covered by a sheath or casing i.

In order to insure the retention in position of the two movable halves c of the tread described, there is fixed upon one of them a spring safety plate h, having beveled lowerl `ilanges at itssides, which it against corresponding projecting edges upon the parts h h of the halves of the tread, so that while the foot of the rider is pressing properly upon the stirrup, the parts are kept in their normal position, but when from accidentally becoming entangled the foot presses against the sides of the tread, the latter open out laterally, (as shown in dotted lines in Fig. 2.)

The operation of the improved stirrup is as follows: lf the foot of the rider from any cause, such as a fall, becomes caught in the stirrup, a side pressure is exerted by the heel or toe against the tread of the stlrrup. As this pressure is greater than that exerted by the two springs e, it follows that the halves of the tread, afterthe safety plate h has been released from the projections h in the way already described, can turn around laterally, (as shown by the arrows and dotted lines in Fig. 2.) The sockets d, by reason of their inclined edges which tit against the corresponding ones on thetread sockets o', are forced upward, compressing the springs e. After the halves of the stirrup tread are sufficiently opened and the foot released, thcyare at once returned to their original closed position, by the action of the springs upon the inclined edges of the sockets. The safety plate h therefore again becomes engaged with the projections at h upon the two halves of the tread c. Y

Having now particularly described and ascertain ed the nature of m'y saidinvention and in what manner the same is to be performed, I declare that what l claim is vIl. A safety stirrup composed of a bail and of a divided, spring-actuated tread, pivoted to the bail, substantially as specified.

2. The combination -of a bail ct, with pins b, beveled sockets surrounding the same, beveled spring actuated rings engaging the sockets, a divided tread supported by the pins and a foot plate that is adapted to extend over the treadjoiut, substantially as specified.

v Signed at Dusseldorf, Germany, this 29th day of December, 1894.

FRIEDRICH WILHELM' MROSE.

Witnesses:

ERNESTINE BADR, WILLIAM EssENwEIN. 

